Highlight is showing ALL products
- Navigate to Stores > Attribute > Product, find an attribute, used by Highlight block.
- Switch to Storefront properties tab and change Used in Product Listing to Yes.
Reindex Magento Store using terminal:
php bin/magento indexer:reindex php bin/magento cache:flush
Filter products by current category
Use Conditions option for this. Select Category in Conditions dropdown and fill its value:
current- Filter products by current category only.
current+- Filter products by current category and it’s children.